دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The Process that keeping downhole cleaning and improving drilling efficiency by jet flow of drilling fluid pounding the cuttings in the downhole in the drilling programe.

n: the speed and cost of complting a well

average distance drilled per day divided by the total number of days in a measurement cycle.

n: a index to react the drilling efficiency which can be expressed by the formula :drilling speed per run = (drill footage)/〔net drilling time+ round trip time〕

n: the drilling method of experimental breaking rock proceeded for the reason of improving the drilling efficiency utilizing the knew scientific priciple and technique

n: a drilling bit having replaceable nozzles through which the drilling fluid is directed in a high-velocity stream to the bottom of the hole to improve the efficiency of the bit. See bit.

n: a drilling bit that has replaceable nozzles through which the mud is circulated.the high velocity of the mud leaving the nozzles improves drilling efficiency.

n: the exponent that generally reflects the drilling unit drilling efficiency.